Draft-equalizer



(No Model.)

J. HORRIGAN.

DRAFT EQUALIZER.

No. 252,667. Patented Jan. 24,1882.

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Usrrran STATES PATENT Orrrca.

JEREMIAH HORRIGAN, OF SOLOMON, IOWA.

DRAFT-EQUALIZERI.

SPECIFICATION forming part of Letters Patent No. 252,667, dated January24, 1882.

Application filed September 8, 1881.

To all whom zt may concern:

Be it known that I, JEREMIAH HORRIGAN, of Solomon, Mills county, Iowa,have invented a new and useful Improvement in Equalizers, of which thefollowing is the specification, reference being had to the accompanyingdrawings, in which similar letters of reference indicate like parts inboth figures.

My invention relates to three-horse equalizers; and its object is toprovide an equalizer which shall belight, simple of construction, andeasily handled for use.

I'attain the objects of my invention by the following method, referencebeing had to the drawings.

Figure 1 is a top view, and Fig. 2 edge view.

In the drawings, A represents the equalizerbeam or triple-tree,preferably about seven feet leng, and tapering toward each end to reducethe weight, and maybe about two by four inches in the middle.

On the rear side of the beam A, and at a distance of one-third itsentire length from each end, are placed the angle or bell-crank levers BB, each consisting of a long arm, a, and a short arm, I), which may beat right angles to each other. A brace, 0, may eonnect the extremitiesof the arms a and b in cases where extra strength is required. Thebell-cranks B B areinserted in mortised notches in the beam A, and maybeprevented from falling outby the pins 0, inserted in the angles formedby the arms. The bell-crank levers B B are placed with their long armstoward each a backother, and may be constructed of flat iron.

(No model.)

From the extremities of the arms a and b of the levers B B extenddirectly forward th rough the mortises n and m in the beam A the rods orchains F GE I. Attached to the extremities of the short arms I) of thelevers B B are the chainsO O, extendingoutward andaround the sheavesD Din the extremities of the beam A and forward in the same direction withthe rods or chains F G H1. the chains 0 O and of the rods F G H I,terminate in hooks e fg h i j, to which the traces of the horses arehitched direclly, the middle horse being hitched to the hooks g h andthe side horses to the hooks efand ij, and since the middle horse exertsone-halt'its strengl h on each of thelong'arms ot the levers B it willbe equaled by the efi'orts ot' the side horses on the short arms of thelevers.

The chains 0 O maybe prevented from falling from the sheaves D D by theplates 6 S passing over the ends of the beam A at a distance from thesheaves not to interfere with the chains freely moving.

What I claim is In a three-horse equalizer, the combination of thetriple-tree A, provided with the sheaves D D, the angle-levers B B,consisting ol" the long arms a and theshort arms b, and the rods orchains O O F G H I, all constructed and combined to operatesubstantially as shown, and for the purposes described.

JEREMIAH HORRlGAN.

Witnesses:

L. BENTLEY, JOHN H. BENTLEY.

The extremities of 5

